/ Dictionary / Index A Altus: Meaning and Definition of Find definitions for: Al•tus Pronunciation: (al'tus), [key] — n. a city in SW Oklahoma. 23,101. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. altruistic ALU Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language